Battery charger



FIG. 1 is a front perspective view of a battery charger;

FIG. 2 is a rear perspective view of the battery charger illustrated in FIG. 1;

FIG. 3 is a front view of the battery charger illustrated in FIG. 1;

FIG. 4 is a rear view of the battery charger illustrated in FIG. 1;

FIG. 5 is right side view of the battery charger illustrated in FIG. 1;

FIG. 6 is a left side view of the battery charger illustrated in FIG. 1;

FIG. 7 is a top view of the battery charger illustrated in FIG. 1; and,

FIG. 8 is a bottom view of the battery charger illustrated in FIG. 1.

The broken lines shown in the drawings are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a battery charger, as shown and described. 